该商品不支持跨城配送，请更换为开城城市内的收货地址

apps/mini-user/src/lib/product-fulfillment.ts

@@ -28,3 +28,18 @@ export function normalizeFulfillmentFlags<T extends FulfillmentFlags>(p: T): T {
     allowCrossCityDelivery: canCrossCity(p),
   };
 }
+
+/** 与交易侧一致：收货市 ≠ 开城市且 ≠ 郑州 → 跨城 */
+export function isCrossCityAddress(
+  addressCity: string | null | undefined,
+  openCityName: string | null | undefined,
+): boolean {
+  const addr = (addressCity || '').trim();
+  const open = (openCityName || '').trim();
+  if (!addr) return false;
+  if (addr === '郑州市') return false;
+  if (open && addr === open) return false;
+  // 尚无开城信息时，非郑州地址先按可能跨城处理（由预览接口最终裁定）
+  if (!open) return addr !== '郑州市';
+  return true;
+}

apps/mini-user/src/pages/order-confirm/index.tsx

@@ -9,7 +9,8 @@ import { tryGetClientGpsLocation } from '../../lib/client-location';
 import { maskPhone } from '../../lib/phone';
 import { ensurePayReady } from '../../lib/pay-ready';
 import { fetchUserProfile } from '../../lib/pay-wechat';
-import { request } from '../../lib/api';
+import { request, toast } from '../../lib/api';
+import { canCrossCity, isCrossCityAddress } from '../../lib/product-fulfillment';
 import { getProductMainImage } from '../../lib/product-images';
 
 type Address = {
@@ -31,6 +32,8 @@ type PreviewProduct = {
   price: number;
   mainImageUrl?: string | null;
   carouselUrls?: string[] | null;
+  allowCrossCityDelivery?: boolean;
+  allowOnlinePurchase?: boolean;
 };
 
 type OrderPreview = {
@@ -41,12 +44,18 @@ type OrderPreview = {
   freightPayType: 'COD' | null;
   payAmount: number;
   benefitAmount: number;
-  city?: { localMinQty: number; crossMinQty: number };
+  city?: { name?: string; localMinQty: number; crossMinQty: number };
   quantityOk?: boolean;
   quantityMessage?: string | null;
+  addressOk?: boolean;
+  addressMessage?: string | null;
   minQty?: number;
+  allowCrossCityDelivery?: boolean;
+  allowOnlinePurchase?: boolean;
 };
 
+const CROSS_CITY_BLOCK_MSG = '该商品不支持跨城配送，请更换为开城城市内的收货地址';
+
 function formatAddress(a: Address) {
   return `${a.province}${a.city}${a.district}${a.detail}`;
 }
@@ -64,6 +73,7 @@ export default function OrderConfirmPage() {
   const [loading, setLoading] = useState(false);
   const [msg, setMsg] = useState('');
   const phonePromptSkipped = useRef(false);
+  const toastedAddressBlockRef = useRef('');
 
   useEffect(() => {
     request<Address[]>('/user/addresses')
@@ -94,7 +104,24 @@ export default function OrderConfirmPage() {
       .then((data) => {
         if (!cancelled) {
           setPreview(data);
-          setMsg(data.quantityOk === false ? (data.quantityMessage || '') : '');
+          const nextMsg =
+            data.addressOk === false
+              ? data.addressMessage || CROSS_CITY_BLOCK_MSG
+              : data.quantityOk === false
+                ? data.quantityMessage || ''
+                : '';
+          setMsg(nextMsg);
+          if (
+            data.addressOk === false &&
+            addressId &&
+            toastedAddressBlockRef.current !== addressId
+          ) {
+            toastedAddressBlockRef.current = addressId;
+            toast(data.addressMessage || CROSS_CITY_BLOCK_MSG);
+          }
+          if (data.addressOk !== false) {
+            toastedAddressBlockRef.current = '';
+          }
         }
       })
       .catch((e) => {
@@ -117,12 +144,27 @@ export default function OrderConfirmPage() {
     [addresses, addressId],
   );
 
-  const isCross = forceCross || preview?.deliveryType === 'CROSS_CITY';
+  const allowCross =
+    preview?.allowCrossCityDelivery !== undefined
+      ? canCrossCity({ allowCrossCityDelivery: preview.allowCrossCityDelivery })
+      : canCrossCity(preview?.product ?? {});
+  const localCross =
+    !!selectedAddress &&
+    isCrossCityAddress(selectedAddress.city, preview?.city?.name);
+  const isCross =
+    forceCross || preview?.deliveryType === 'CROSS_CITY' || localCross;
+  const crossBlocked = isCross && !allowCross;
+  const addressOk = preview ? preview.addressOk !== false && !crossBlocked : !crossBlocked;
   const minQty =
     preview?.minQty ??
     (isCross ? (preview?.city?.crossMinQty ?? 6) : (preview?.city?.localMinQty ?? 2));
   const quantityOk = preview ? preview.quantityOk !== false && quantity >= minQty : false;
-  const canSubmit = !!addressId && !!preview && quantityOk && !loading && !previewLoading;
+  const canSubmit =
+    !!addressId && !!preview && quantityOk && addressOk && !loading && !previewLoading;
+
+  const addressHint = !addressOk
+    ? preview?.addressMessage || CROSS_CITY_BLOCK_MSG
+    : '';
 
   function updateQuantity(next: number) {
     if (next < 1) return;
@@ -162,6 +204,12 @@ export default function OrderConfirmPage() {
         setMsg('请选择收货地址');
         return;
       }
+      if (!addressOk) {
+        const tip = addressHint || CROSS_CITY_BLOCK_MSG;
+        setMsg(tip);
+        toast(tip);
+        return;
+      }
       if (!quantityOk) {
         setMsg(
           isCross
@@ -219,9 +267,12 @@ export default function OrderConfirmPage() {
     ? '提交中…'
     : !addressId
       ? '请选择地址'
+      : !addressOk
+        ? '请更换地址'
         : !quantityOk
           ? `至少购买 ${minQty} 瓶`
           : '提交订单';
+  const displayMsg = msg || addressHint;
 
   return (
     <PageShell variant="sub" className="order-confirm-page" hasFixedFooter>
@@ -254,7 +305,13 @@ export default function OrderConfirmPage() {
           )}
         </View>
 
-        {isCross ? (
+        {!addressOk && addressId ? (
+          <View className="order-card order-card--warn">
+            <Text className="order-warn-text">{addressHint || CROSS_CITY_BLOCK_MSG}</Text>
+          </View>
+        ) : null}
+
+        {isCross && addressOk ? (
           <View className="order-card">
             <Text className="u-muted">
               该地址超出同城配送范围，将由总部物流发货，运费到付
@@ -333,9 +390,9 @@ export default function OrderConfirmPage() {
         {!previewLoading && !preview && productId ? (
           <View className="u-empty">无法加载商品信息</View>
         ) : null}
-        {msg ? (
+        {displayMsg ? (
-          <Text className="u-muted" style={{ display: 'block', marginTop: 8, textAlign: 'center' }}>
+          <Text className="order-warn-text" style={{ display: 'block', marginTop: 8, textAlign: 'center' }}>
-            {msg}
+            {displayMsg}
           </Text>
         ) : null}
       </View>

apps/mini-user/src/styles/order.css

@@ -81,6 +81,19 @@
   box-shadow: var(--shadow-card);
 }
 
+.order-card--warn {
+  background: rgba(166, 29, 36, 0.06);
+  box-shadow: none;
+  border: 1px solid rgba(166, 29, 36, 0.15);
+}
+
+.order-warn-text {
+  display: block;
+  font-size: 13px;
+  line-height: 1.5;
+  color: var(--color-heritage-red);
+}
+
 .order-card-title {
   display: block;
   font-family: var(--font-headline);

server/dukang-api/src/modules/trade/trade.service.ts

@@ -86,18 +86,21 @@ export class TradeService {
       }
     }
 
+    let addressOk = true;
+    let addressMessage: string | null = null;
     if (!onSitePickup) {
       const allowOnline = product.allowOnlinePurchase !== false;
       const allowCross = product.allowCrossCityDelivery !== false;
       if (deliveryType === 'LOCAL' && !allowOnline) {
-        throw new BadRequestException('该商品不支持线上购买');
+        addressOk = false;
-      }
+        addressMessage = '该商品不支持线上购买';
-      if (deliveryType === 'CROSS_CITY') {
+      } else if (deliveryType === 'CROSS_CITY') {
         if (!allowOnline) {
-          throw new BadRequestException('该商品不支持线上购买');
+          addressOk = false;
-        }
+          addressMessage = '该商品不支持线上购买';
-        if (!allowCross) {
+        } else if (!allowCross) {
-          throw new BadRequestException('该商品不支持跨城配送');
+          addressOk = false;
+          addressMessage = '该商品不支持跨城配送，请更换为开城城市内的收货地址';
         }
       }
     }
@@ -137,8 +140,13 @@ export class TradeService {
       /** 起购未满足时仍返回预览，供确认页改数量；下单接口仍会硬校验 */
       quantityOk: check.ok,
       quantityMessage: check.ok ? null : (check.message ?? null),
+      /** 地址/履约未满足时仍返回预览，供确认页提示换地址；下单接口仍会硬校验 */
+      addressOk,
+      addressMessage,
       minQty,
       onSitePickup,
+      allowCrossCityDelivery: product.allowCrossCityDelivery !== false,
+      allowOnlinePurchase: product.allowOnlinePurchase !== false,
     };
   }
 
@@ -157,6 +165,9 @@ export class TradeService {
     if (preview.quantityOk === false) {
       throw new BadRequestException(preview.quantityMessage || '购买数量不满足起购要求');
     }
+    if (preview.addressOk === false) {
+      throw new BadRequestException(preview.addressMessage || '收货地址不可用');
+    }
 
     const onSitePickup = !!body.onSitePickup || preview.deliveryType === 'ON_SITE_PICKUP';
     let receiverName = '现场取货';